EP 0983984 A3 20000517 - Method for reductive cleavage of linear and cyclic acetals, especially formals
Title (en)
Method for reductive cleavage of linear and cyclic acetals, especially formals
Title (de)
Verfahren zur reduzierenden Spaltung von linearen und cyclischen Acetalen, insbesondere Formalen
Title (fr)
Méthode pour la scission réductive d'acétals linéaires et cycliques, notamment de formals
Publication
Application
Priority
DE 19840276 A 19980904
Abstract (en)
[origin: EP0983984A2] A reaction temperature of 200-300 degrees C, with a weight ratio of (catalyst metal):(acetal) = less than 0.1 (for suspension methods) is used in the reductive cleavage of linear and cyclic acetals, especially formals, in aqueous, formate-containing media in presence of a heterogeneous hydrogenation catalyst and hydrogen at 0.1-30 MPa and pH below 7.
IPC 1-7
IPC 8 full level
B01J 23/46 (2006.01); C07B 61/00 (2006.01); C07C 29/132 (2006.01); C07C 29/90 (2006.01); C07C 31/24 (2006.01)
CPC (source: EP US)
C07C 29/132 (2013.01 - EP US); C07C 29/90 (2013.01 - EP US)
Citation (search report)
- [DY] WO 9701523 A1 19970116 - PERSTORP AB [SE], et al
- [Y] US 3819728 A 19740625 - KWANTES A, et al
- [Y] DE 4414274 A1 19951026 - CHEMIE LINZ DEUTSCHLAND [DE]
- [Y] DE 4220939 A1 19940105 - HUELS CHEMISCHE WERKE AG [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0983984 A2 20000308; EP 0983984 A3 20000517; BR 9904064 A 20000919; CA 2281364 A1 20000304; DE 19840276 A1 20000309; DE 19840276 C2 20021031; JP 2000086551 A 20000328; TW 460443 B 20011021; US 6265623 B1 20010724
DOCDB simple family (application)
EP 99116581 A 19990825; BR 9904064 A 19990902; CA 2281364 A 19990903; DE 19840276 A 19980904; JP 24760499 A 19990901; TW 88114984 A 19990831; US 38405899 A 19990826